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Subtract 90/72 from 30/15

1st number: 2 0/15, 2nd number: 1 18/72

30/15 - 90/72 is 3/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 15 × 24 = 360,
    30/15 = 30 × 24/15 × 24 = 720/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    90/72 = 90 × 5/72 × 5 = 450/360
  4. Subtract the two like fractions:
    720/360 - 450/360 = 720 - 450/360 = 270/360
  5. After reducing the fraction, the answer is 3/4

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